JP2015185039A - Life behavior determination device, program and method capable of determining occurrence of life behavior - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a life behavior determination device which can determine life behavior in real time without teacher data.SOLUTION: A life behavior determination device comprises: active power value calculation means which calculates an "active power value" to be criteria for determining whether at least one person is active or not in a living zone on the basis of a minimum value or a value associated with the minimum value among representative values of consumption power in the respective time zones and in the living zone; active power range setting means which sets an "active power range" that is a reference for a difference between a representative value of consumption power in the time zone and in the living zone and a representative value of consumption power in a time zone before the time zone and in the living zone to be criteria for determining whether a life behavior occurs or not; and life behavior determination means which determines whether a life behavior occurs in the time zone and in the living zone on the basis of a representative value of consumption power in the time zone and in the living zone using the "active power value" and the "active power range" as threshold values of determination.

Description

  The present invention relates to a technique for determining a living behavior of a consumer from information that can be acquired from the outside, such as power consumption in a living area.

  At present, an environment for easily using high-performance information devices with the advancement of communication technology has been established, and detailed services can be provided to users of information devices. For example, it is possible to present product information, event information, and life advice information in consideration of the user's current position, user's preference, and the like.

  At this time, in order to provide an appropriate service that is aimed at the user, it is important to grasp in advance the user's daily behavior. As a technique for estimating the living behavior of such a consumer, for example, Patent Document 1 measures a load current by an electric device, compares the measured value with a threshold value, and the load current value in the house determines the threshold value. A system is disclosed that determines that the resident is active at home if exceeded.

  Here, the threshold value used for this estimation is calculated based on the measurement result of the load current. Specifically, the threshold value is set using the set parameter k and data of a day that is known to have been at home.

JP 2011-43984 A

  However, in the prior art as disclosed in Patent Document 1, teacher data in which a power consumption value in a predetermined period is associated with, for example, a home situation as a correct value is indispensable for making a determination. In fact, even with the determination technique of Patent Document 1, in order to set a threshold value, information regarding the presence / absence of at-home for the measured date is required as teacher data.

  As a result, for example, at the stage where only the current value consumed at home (for example, the instantaneous value every 30 minutes) and the power value (for example, the 30-minute value) are obtained as measurement results, the threshold value considering the characteristics of the household is set. Cannot be determined. Here, if the determination immediately after measuring the current value at each time and the power value at each time zone is hereinafter referred to as “real time determination”, the prior art performs this real time determination. It has become very difficult.

  Therefore, an object of the present invention is to provide a living behavior determining apparatus, program, and method that can determine living behavior in real time without requiring teacher data.

According to the present invention, there is provided a living behavior determination device that performs a determination related to a living behavior of a consumer in a living area,
Based on the minimum value among the representative values of power consumption in the living area in each time zone constituting the unit period or a value related to the minimum value, at least one person or a predetermined number of people are active in the living area Active power value calculating means for calculating an “active power value” that is a criterion for determining whether or not
A standard for the difference between the representative value of power consumption in the living area in the time zone and the representative value of power consumption in the living area in the time zone prior to the time zone, corresponding to the occurrence of living behavior An active power width setting means for setting an “active power width” that is a criterion for determining whether or not to perform,
Based on the representative value of power consumption in the living area in the time zone, the calculated “active power value” and the set “active power width” are used as thresholds for determination in the living area in the living area in the time zone. There is provided a living behavior determining device having a living behavior determining means for determining whether or not the occurrence has occurred.

  In this living behavior determining apparatus, the living behavior determining means is configured such that the representative value of power consumption in the time period is greater than the “activity power value” and the representative value of power consumption in the time period and the time before the time period. If the difference from the representative value of power consumption in the band is greater than the “active power range” and the representative value of power consumption in the previous time period is smaller than the “active power value”, It is also preferable to determine that a living activity has occurred in a direction that increases activity in the area.

Moreover, as one embodiment of the living behavior determination device of the present invention, based on the maximum value or the value related to the maximum value among the representative values of power consumption in the living area in each time zone constituting the unit period. And a maximum activity power value calculating means for calculating a “maximum activity power value” which is a criterion for determining whether or not all the residents or a predetermined percentage or more of the people are active in the living area,
The living behavior determination means uses the calculated “maximum active power value” as a threshold for determination, and determines whether or not all of the residents or a predetermined percentage or more of the residents are active in the living area during the time period. Is also preferable.

  Furthermore, in the living behavior determination device of the present invention, the active power value calculating means includes, for each unit period constituting the predetermined period, out of representative values of power consumption in the living area in each time zone constituting the unit period. It is also preferable to calculate the “active power value” based on the average value and the standard deviation of the minimum value calculated for each unit period.

  Further, in the living behavior determination apparatus of the present invention, the active power width setting means may be configured as “active power width as an individual value for each of a plurality of living areas in a predetermined area or as a value common to the plurality of living areas. Is also preferable.

  Furthermore, in one embodiment of the living activity determination apparatus of the present invention, the maximum activity power value calculation means is configured to calculate power consumption in the living area in each time zone constituting the unit period for each unit period constituting the predetermined period. It is also preferable to calculate the “maximum active power value” based on the average value and the standard deviation of the maximum value calculated for each unit period.

  Further, in the living behavior determining apparatus of the present invention, the living behavior determining means is a representative of the power consumption in a time zone in which the representative value of power consumption in the time zone is smaller than the “activity power value” and before the time zone. If the difference between the value and the representative value of power consumption in the relevant time zone is greater than the “active power range” and the representative value of power consumption in the previous time zone is greater than the “active power value”, the relevant time zone In addition, it is also preferable to determine that a living behavior has occurred in a direction that reduces the activity in the living area.

  Furthermore, as another embodiment of the living behavior determination device of the present invention, there is a living event table in which a living event that is a type of living behavior is associated with each time zone, and the living behavior is generated by the living behavior determination means. It is also preferable to further include a life event determination unit that, when determined, determines that a life event associated with the time zone related to the determination has occurred.

According to the present invention, there is also provided a living behavior determination program for causing a computer mounted in a living behavior determination device for determining the occurrence of a living behavior of a consumer in a living area to
Based on the minimum value among the representative values of power consumption in the living area in each time zone constituting the unit period or a value related to the minimum value, at least one person or a predetermined number of people are active in the living area Active power value calculating means for calculating an “active power value” that is a criterion for determining whether or not
A standard for the difference between the representative value of power consumption in the living area in the time zone and the representative value of power consumption in the living area in the time zone prior to the time zone, corresponding to the occurrence of living behavior An active power width setting means for setting an “active power width” that is a criterion for determining whether or not to perform,
Based on the representative value of power consumption in the living area in the time zone, the calculated “active power value” and the set “active power width” are used as thresholds for determination in the living area in the living area in the time zone. There is provided a living behavior determining program for causing a computer to function as a living behavior determining means for determining whether or not an occurrence has occurred.

According to the present invention, there is further provided a method for determining the occurrence of a living behavior of a consumer in a living area,
Based on the minimum value among the representative values of power consumption in the living area in each time zone constituting the unit period or a value related to the minimum value, at least one person or a predetermined number of people are active in the living area Calculate the “active power value” that is a criterion for determining whether or not the user is in the same area, and the representative value of power consumption in the living area in the time zone and the living area in the time zone before the time zone. A first step of setting an “activity power width” that is a criterion for a difference from a representative value of power consumption of the device and that is a criterion for determining whether or not it corresponds to the occurrence of a living activity;
Based on the representative value of power consumption in the living area in the time zone, the calculated “active power value” and the set “active power width” are used as thresholds for determination in the living area in the living area in the time zone. And a second step of determining whether or not has occurred.

  According to the living behavior determination apparatus, determination program, and determination method of the present invention, it is possible to determine living behavior in real time without requiring teacher data.

It is a schematic diagram in one Embodiment of the living action determination system by this invention. It is a functional block diagram which shows the function structure in one Embodiment of the living action determination apparatus by this invention. It is a graph which shows the result of having performed the determination which concerns on a living action from the time change of a power consumption value. It is a table which shows the living action determination result in each day which comprises a predetermined period. It is a table which shows an example of a life event table. It is a table which shows the life event determined in each 1 day which comprises a predetermined period.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Living behavior judgment system]
FIG. 1 is a schematic diagram of an embodiment of a living behavior determination system according to the present invention.

  In FIG. 1, the living behavior determination system according to the present embodiment includes a living behavior determination device 1 installed in an operator communication network 2. The living behavior determining apparatus 1 determines the user's living behavior based on the power consumption of the consumer (power user).

  Here, the determination of the living behavior of the user in the present embodiment is based on how much of the users (for example, household members) who live in the area in the living area (for example, home) that is the determination target place. Includes determining whether or not a living behavior has occurred, and what kind of living behavior (a living event) has been generated. Incidentally, examples of the life event include “get up” (get up), “go out” (go out), “returned home” (home), “sleeped” (sleeping), and the like.

  In this embodiment, the power consumption of the user (resident) is transmitted from the home gateway (HGW) 4 installed at the user's home to the living behavior determination apparatus 1 via the provider communication network 2. Here, the power consumption may be measured by the smart meter 3, and the measured value may be output to the HGW 4 via, for example, a HEMS (Home Energy Management System). Moreover, as a change mode, the smart meter 3 transmits the power consumption to an MDMS (Meter data Management System) (not shown) that is not shown in the figure, and the living behavior determination apparatus 1 calculates the power consumption from the MDMS. It is also possible to obtain.

  The carrier communication network 2 can be a fixed access network such as an optical fiber network or an ADSL (Asymmetric Digital Subscriber Line). In addition, wireless LAN (Local Area Network) such as Wi-Fi (registered trademark), WiMAX (Worldwide Interoperability for Microwave Access), LTE (Long Term Evolution) or 3G (3rd Generation) or other wireless access network may be used. Is possible.

  The smart meter 3 measures the amount of power consumed by the user at home, and outputs a measured value of the amount of power consumed per unit time to the HGW 4 via, for example, HEMS. Here, instead of the smart meter, a CT sensor installed on a distribution board, a clamp meter (overhead ammeter), or an outlet tap (tap wattmeter) installed at an outlet may be used. In this case, the individual power consumption of in-house power distribution can be measured with a CT sensor, a power outlet tap, etc., and the measured value of the power consumption can be output to the HGW 4.

  For example, the HGW 4 relays and controls communication between a home network provided in the house and the carrier communication network 2. For example, a personal computer (PC) may be connected to the home network via a wireless access point (AP). The HGW 4 further transmits the measurement value of the power consumption per unit time acquired from the smart meter 3 to the living behavior determination device 1 via the business operator communication network 2.

  The living behavior determination apparatus 1 receives a measurement value of the power consumption amount in the user's home, generates power consumption data from the measurement value, and accumulates the data. As a change mode, a server installed in a living area (home) can also generate and accumulate power consumption data from a measured value of power consumption.

Next, the living behavior determination apparatus 1 is based on the generated power consumption data.
(A) An “active power value” that is a criterion for determining whether or not at least one person or a predetermined number of persons are active in the living area (home) is calculated.
This “active power value” is related to a minimum value or a minimum value among representative values of power consumption at home in each time zone (eg, hourly time zone) constituting a unit period (eg, one day). It can be calculated based on a value (for example, an average value or standard deviation of minimum values).

  Here, the representative value of the power consumption in one time zone can be the median value of the time values of the power consumption included in this time zone. For example, when the raw data is four 15-minute values of power consumption in a time zone of 1 hour, the median value of these four 15-minute values is set as a representative value in this time zone. Therefore, when the time granularity of the raw data is coarse, for example, when the raw data is one hour value of power consumption in a time zone of one hour, this one hour value is a representative value in this time zone. Note that, when the time granularity of the raw data is fine, setting the “median value” as the representative value has an effect of reducing the influence of the abnormal value of the power consumption that can be included in the raw data. Furthermore, as a change mode, a representative value of power consumption in one time zone is changed to an average value of power consumption amounts included in this time zone, for example, an average value of four 15-minute values included in one time zone. It is also possible to do.

Furthermore, the activity status determination device 1
(B) A standard for a difference between a representative value of power consumption at home in one time zone and a representative value of power consumption at home in a time zone before the time zone, corresponding to the occurrence of living behavior The “active power range” is set as a criterion for determining whether or not to perform.
This “active power range” can be set as an empirical value from the analysis of the power consumption.

  Next, the activity status determination device 1 uses (a) “active power value” and (b) “active power width” as threshold values for determination, based on the representative value of power consumption at home in the time zone to be determined, It is determined whether or not a living activity has occurred at home during the time period.

  In the present embodiment, in this way, the threshold value used for the determination can be set without using any teacher data such as information on presence / absence at home at a predetermined date and time, for example. As a result, it is possible to determine the occurrence of living behavior by determining a threshold value that takes into account the characteristics of the household at the stage where the amount of power consumed at home is acquired as a measured value, that is, in “real time”. .

The activity status determination device 1 further includes:
(C) It is also preferable to calculate a “maximum active power value” that is a criterion for determining whether all the residents (household members) or a predetermined percentage or more of the residents are active in the living area (home).
This “maximum active power value” is related to the maximum value of the representative value of power consumption at home in each time zone (for example, hourly time zone) constituting the unit period (one day) or the maximum value. It can be calculated based on the value to be performed (for example, the average value or standard deviation of the maximum values).

  In this case, the calculated (c) “maximum active power value” is used as a threshold for determination, and it is determined whether all the residents or more than a predetermined percentage of the residents are active at home in the time zone to be determined. be able to. As a result, together with the results of the determination using (a) “active power value” and (b) “active power range”, what percentage of all living people in the living area Can be obtained. For example, it is possible to obtain living behavior information that “all of the households will go out at 8 o'clock”. For example, when giving life advice, an appropriate message such as prompting the door to be closed or turning off household equipment at 7 o'clock Can also be generated.

[Living behavior determination device]
FIG. 2 is a functional block diagram showing a functional configuration in an embodiment of the living behavior determining apparatus according to the present invention.

  According to FIG. 2, the living behavior determination apparatus 1 includes a communication interface unit 101, a power consumption data management unit 102, and a processor memory. Here, the processor / memory realizes the living action determination function by executing a program that causes the computer mounted in the living action determination apparatus 1 to function.

  Here, the processor memory includes a threshold value setting unit 11, a living action determining unit 12, and a living event determining unit 13. Among these, the threshold setting unit 11 includes an active power value calculating unit 111, an active power width setting unit 112, a maximum active power value calculating unit 113, and a threshold accumulation unit 114. In addition, the living behavior determination unit 12 preferably includes a living behavior occurrence determination unit 121 and further includes a maximum living behavior determination unit 122.

  In addition, according to FIG. 2, the flow of the process which connected each function structure part with the arrow is understood also as one Embodiment of the method of determining the living action by this invention.

The communication interface unit 101
(A) Receive measured value data of power consumption from a smart meter 3 or HGW 4 installed at home (living area) for a living person (electric power user) who is a target of living behavior determination;
(B) The determination result related to the living action output from the living action determination unit 12 or the determination result related to the living event output from the living event determination unit 13 is transmitted to an external notification destination. For example, the determination result can be presented to a user or a business operator who needs the determination result via a website or an application.

  The power consumption data management unit 102 accumulates power consumption data generated from the received measurement value of power consumption. The power consumption data is, for example, consumption in each time zone (for example, 0 o'clock, 1 o'clock, ..., 23 o'clock) for each unit period (for example, 1 day) that constitutes a determination period (for example, 100 days). It can be a set of power values (1 hour value: unit Wh). Alternatively, the power consumption data may be configured with four 15-minute values or two 30-minute values of the power consumption in each time zone every hour.

  The active power value calculation unit 111 is based on a minimum value of representative values of power consumption at home (living area) in each time zone constituting a unit period (one day) or a value related to the minimum value. An “active power value” that is a criterion for determining whether or not at least one person (or a predetermined number of persons) is active at home is calculated. In other words, this “activity power value” is a threshold value for determining a state in which some of the residents at home is performing some kind of living behavior in the home.

Specifically, the active power value calculation unit 111
(A) For each day constituting, for example, 100 days (determination period), representative values of power consumption at home in each time zone, for example, at 0:00, 1,. Calculate the minimum of them,
(B) Based on the average value MIN _AV and standard deviation σ _MIN of the minimum values calculated every day (for example, 100 total), the “active power value” P _TH1 is expressed by the following equation (1) P _TH1 = MIN _AV + C ₁・ σ _MIN
Calculate using. Here, the coefficient C ₁ is preferably set to 2 as an empirical value.

In addition, the representative value of the power consumption at home in each time zone, for example, 0 o'clock, 1 o'clock,..., And 23:00 o'clock, when the raw data is a 15-minute value, It can be the median of the four 15-minute values. In addition, when the raw data is a one-hour value, this one-hour value is a representative value. Further, the determination period and the calculation formula (coefficient C ₁ ) of the “active power value” P _TH1 described above are not limited to the above. For example, both the determination period and the coefficient C ₁ may be a period and a value in consideration of seasonality such as winter, summer, and intermediate season in the determination period. In the following embodiment, the “active power value” P _TH1 in the above equation (1) is used as a reference for determining whether “at least one person is active at home”. Here, the average MIN _AV of the minimum values in the formula (1) is the amount of power that does not depend on the living behavior of the consumer, and depends on the operation as the background of the power consuming device installed in the home. It can be taken as a quantity.

  The active power width setting unit 112 represents a representative value of power consumption at home (living area) in one time zone and power consumption at home in a time zone before this time zone, for example, the previous time zone. Set the “active power range” as a reference for the difference from the representative value. This “activity power range” is a criterion that is empirically obtained as to whether or not it corresponds to the occurrence of a living activity, as will be described later. For example, 30 Wh (watt hour) as a difference between adjacent one-hour zones. can do. For example, the “active power range” at 2:00 am may be used as a reference for the difference between the representative value of power consumption at 2:00 am and the representative value of power consumption at 1:00 am.

  The “active power range” is preferably set as an individual value for each of a plurality of households (living areas) in a predetermined area. Or it is also preferable to set as a value common to these several households. The number of households can be set to 30, for example.

  The maximum active power value calculation unit 113 is based on the maximum value among the representative values of power consumption at home (living area) in each time zone constituting a unit period (one day) or a value related to the maximum value. Then, a “maximum active power value” that is a criterion for determining whether or not all the residents (household members) (or more than a predetermined percentage of the persons) are active at home is calculated. In other words, the “maximum active power value” is a threshold value for determining a state in which the household is actively active.

Specifically, the maximum active power value calculation unit 113 includes:
(A) For each day constituting, for example, 100 days (determination period), representative values of power consumption at home in each time zone, for example, at 0:00, 1,. Calculate the maximum of them,
(B) Based on the average value MAX _AV and the standard deviation σ _MAX at the maximum values (for example, a total of 100) calculated every day, the “maximum active power value” P _TH2 is expressed by the following equation (2) P _TH2 = MAX _AV + C ₂ · σ
Calculate using. Here, the coefficient C ₂ is preferably set to 1 as an empirical value.

Of course, the determination period and the calculation formula (coefficient C ₂ ) for the “maximum active power value” P _TH2 described above are not limited to the above. For example, both the determination period and the coefficient C ₂ may be periods and values that take into account seasonality such as winter, summer, and intermediate seasons in the determination period. In the following embodiment, the “maximum active power value” P _TH2 in the above equation (2) is used as a reference for determining whether or not all the residents (household members) are active at home. . Here, in this embodiment, the “active power width” is not used as a threshold value for this determination. This is because the peak of power consumption that all consumers are active is often caused by the cumulative increase in power over time (for example, lighting, air conditioners, humidifiers, TVs, etc. at night). (Sequentially turn ON).

  The threshold accumulation unit 114 is calculated by the “active power value” calculated by the active power value calculation unit 111, the “active power width” set by the active power width setting unit 112, and the maximum active power value calculation unit 113. The “maximum active power value” is stored as a threshold value (index) used when determining living behavior. In addition, at the time of living behavior determination, these stored threshold values are output to the living behavior occurrence determination unit 121.

  Based on the representative value of power consumption at home (living area) in the time zone to be determined, acquired from the power consumption data management unit 102, the living activity occurrence determination unit 121 receives the “activity power value” input from the threshold accumulation unit 114. Then, using the “activity power range” as a determination threshold, it is determined whether or not a living activity has occurred at home during the time period.

Specifically, the living behavior occurrence determination unit 121 determines the time zone to be determined.
(A) The representative value of power consumption in the time zone is greater than the “active power value”, and (b) the representative value of power consumption in the time zone and the power consumption in the time zone immediately before the time zone. When the difference from the representative value is larger than the “active power width” and (c) the representative value of power consumption in the previous time zone is smaller than the “active power value”,
It is determined that “living behavior in a direction in which activities at home increase” occurred during the time period. The order in which the determination steps (a) to (c) are executed is not limited.

In addition, the living behavior occurrence determination unit 121 determines the time zone to be determined.
(D) The representative value of power consumption in the time zone is smaller than the “active power value”, and (e) the representative value of power consumption in the time zone immediately before the time zone and the power consumption in the time zone. When the difference from the representative value is larger than the “active power range” and (f) the representative value of power consumption in the previous time zone is larger than the “active power value”,
It is determined that “living behavior in a direction that reduces activities at home” occurred during the time period. The order in which the determination steps (d) to (f) are executed does not matter.

  In this way, instead of simply determining the power consumption value based on the threshold value, by taking into account the difference in the representative value of the power consumption between the time zones and the representative value of the power consumption in each time zone, It becomes possible to determine the “occurrence” of the action with higher accuracy.

The maximum living action determination unit 122 determines the calculated “maximum activity power value” based on the representative value of power consumption at home (living area) in the time zone to be determined acquired from the power consumption data management unit 102. As a threshold value, it is determined whether or not all the residents are active at home (living area) in the time zone to be determined. In particular,
(G) If the representative value of power consumption during the time period is greater than the “maximum active power value”,
It is determined that all the residents are active during the time period.

  FIG. 3 is a graph showing a result of determination related to living behavior based on a change in power consumption value over time.

  Figure 3 shows the power consumption (representative) value for each time zone (one hour) on September 21, 2012, and the power consumption (representative) for each time zone (one hour) on September 22, 2012 A graph of values is shown. In the graph, the power consumption (representative) value at time n indicates the power value (Wh) at 1 hour in the n hour range.

  Here, in the graph of FIG. 3, the “active power value” is 110 Wh, the “active power width” is 30 Wh, and the “maximum active power value” is 210 Wh.

  For example, on September 21, 2012, the power value data point (round point) at 5 o'clock (5 o'clock range) is surrounded by a broken-line circle. This indicates that it was determined that the conditions of the determination steps (a) to (c) were satisfied at 5 o'clock and that “living behavior in the direction of increasing activities at home” occurred. Further, for example, on September 22, 2012, the power value data point (square point) at 11:00 (11:00 level) is surrounded by a broken-line square. This indicates that at 11 o'clock, the condition of the determination step (ki) was satisfied and it was determined that all the residents (household members) were active.

  In this way, if the power consumption (representative) value in each time zone is acquired sequentially, by using the “active power value” and the “active power width”, and further using the “maximum active power value”, This makes it possible to make a determination related to living behavior in real time without using teacher data.

  FIG. 4 is a table showing the living behavior determination results for each day constituting the predetermined period.

The table in FIG. 4 shows the determination results relating to the power consumption (representative) values for each time zone of 0 o'clock, 1 o'clock, 2 o'clock,... On each day after September 23, 2012. It indicates which of the following (a) to (c) is applicable.
(A) “0: Nobody is active”: When neither of the conditions of the determination steps (a) to (c) and the conditions of the determination steps (d) to (f) is satisfied.
(B) “1: Someone is active”: When the conditions of the determination steps (a) to (c) above or the conditions of the determination steps (d) to (f) are satisfied.
(C) “2: All employees are active”: When the determination condition of (ki) above is satisfied.

  Incidentally, (b) “1: Someone is active” includes power consumption (representative) greater than the “active power value” that follows the time period that satisfies the conditions of the determination steps (a) to (c). ) The time zone showing the value is also applicable.

  In this way, it is possible to acquire information on living activities in each time zone in each day constituting a predetermined period, including the number of active persons, only by using the power consumption value data. is there.

[Life event judgment]
Returning to FIG. 2, the life event determination unit 13 has a life event table 13t in which “life event”, which is a type of life activity, is associated with each time zone, and the life activity determination unit 12 generates the life activity. It is determined that a “life event” associated with the time zone related to this determination has occurred. That is, the life event determination unit 13 sets each column (classified by a numerical value “0”, “1”, or “2”) of the life action determination result obtained in the form of FIG. Can be labeled.

  FIG. 5 is a table showing an example of the life event table 13t. Here, FIG. 5A shows a life event table 13t in which a time zone and a life event “in the direction of increasing activity at home” are stored in association with each other. Further, FIG. 5B shows a life event table 13t that stores time periods and life events “in a direction in which the activity at home decreases” in association with each other.

  For example, 6 o'clock on September 23, 2012 in FIG. 4 is “1”: “someone is active”. Further, “1” satisfies the conditions of the determination steps (a) to (c) described above, and it is assumed that “living behavior in a direction in which activity at home increases” has occurred. In this case, when the life event table 13t of FIG. 5A is used, since it is 6 o'clock (morning), the generated life event can be determined to be “wake up”.

  Further, according to the life event table 13t of FIG. 5B, for example, even in a time zone that satisfies the conditions of the determination steps (d) to (f) above, the time zone is daytime (10:00 to 16). Life event is determined as “going out”, and if the time zone is night (22:00 to 4 o'clock), the life event is determined as “sleeping”.

  Thus, according to the life event table 13t, it is possible to determine a life event suitable for the time zone to be determined, depending on whether the life action is “increase direction” or “decrease direction”.

  FIG. 6 is a table showing life events determined on each day constituting a predetermined period.

  According to FIG. 6, for example, on September 23, 2012, the life event “wakes up” occurs at 6 o'clock, “going out” occurs at 10 o'clock, and “returning home” occurs at 18 o'clock. It can be seen that “sleeping” occurred at about 27:00 (3 o'clock). It can also be seen that all the residents (household members) at home were performing living activities at 7 o'clock, 18 o'clock and 22-23 o'clock.

  As described above, according to the present embodiment, the power consumption in the living area can be determined without using any teacher data to determine what “life event” what number of consumers are performing in which time zone. It can be determined from the value alone.

  As described above in detail, according to the present invention, it is possible to set the threshold value used for the determination of the living behavior without using any teacher data such as information on the presence / absence of being at home at a predetermined date and time. As a result, it is possible to determine the occurrence of living behavior by determining a threshold value in consideration of the characteristics of the household in real time, that is, at the stage where the power consumption in the home is acquired as a measured value. In addition, it is possible to determine living behavior based only on the measured power consumption in the living area.

  Further, if information such as a life event table is used, it is possible to determine what number of life events were performed by which number of consumers in which time zone.

  Note that it is also possible to provide appropriate support information about the user's power consumption and life patterns, for example, power saving advice and advice on the life time period, based on the user's life behavior determined in this way. . This also makes it possible to achieve energy savings and efficient use of communication resources.

  Various changes, modifications, and omissions of the above-described various embodiments of the present invention can be easily made by those skilled in the art. The above description is merely an example, and is not intended to be restrictive. The invention is limited only as defined in the following claims and the equivalents thereto.

DESCRIPTION OF SYMBOLS 1 Living action determination apparatus 101 Communication interface part 102 Power consumption data management part 11 Threshold value setting part 11
DESCRIPTION OF SYMBOLS 111 Active power value calculation part 112 Active power width setting part 113 Maximum active power value calculation part 114 Threshold storage part 12 Living action determination part 121 Living action generation | occurrence | production determination part 122 Maximum living action determination part 13 Living event determination part 131t Living event table 2 Carrier communication network 3 Smart meter 4 HGW

Claims (10)

A living behavior determination device that performs a determination related to a living behavior of a consumer in a living area,
Based on the minimum value among the representative values of power consumption in the living area in each time zone constituting the unit period or a value related to the minimum value, at least one person or a predetermined number of people are active in the living area Active power value calculating means for calculating an active power value which is a criterion for determining whether or not
A standard for the difference between the representative value of power consumption in the living area in the time zone and the representative value of power consumption in the living area in the time zone prior to the time zone, corresponding to the occurrence of living behavior An active power width setting means for setting an active power width as a criterion for determining whether or not to perform;
Based on the representative value of power consumption in the living area during the time zone, the living activity occurs in the living area during the time zone using the calculated activity power value and the set activity power width as a threshold for determination. A living behavior determining device, comprising: a living behavior determining means for determining whether or not it has been performed.   The living behavior determining means is configured such that the representative value of power consumption in the time zone is larger than the activity power value, and the representative value of power consumption in the time zone and the representative value of power consumption in the time zone before the time zone. Is larger than the activity power width and the representative value of power consumption in the previous time zone is smaller than the activity power value, the activity in the living area increases in the time zone. The living behavior determining apparatus according to claim 1, wherein it is determined that a living behavior has occurred. Based on the maximum value among the representative values of power consumption in the living area in each time zone that constitutes the unit period, or a value related to the maximum value, all the residents in the living area or living at a predetermined rate or more A maximum active power value calculating means for calculating a maximum active power value that is a criterion for determining whether or not the person is active;
The living behavior determining means determines whether all the residents or a predetermined percentage or more of the residents are active in the living area in the time zone using the calculated maximum activity power value as a determination threshold. The living behavior determination device according to claim 1, wherein:   The active power value calculating means calculates, for each unit period constituting a predetermined period, a minimum value of representative values of power consumption in the living area in each time zone constituting the unit period, and for each unit period. The living activity determination device according to claim 1, wherein the activity power value is calculated based on an average value and a standard deviation of the minimum value calculated in step 1.   The active power width setting means sets the active power width as an individual value for each of a plurality of living areas in a predetermined area or as a value common to the plurality of living areas. The living behavior determination device according to any one of 1 to 4.   The maximum active power value calculating means calculates, for each unit period constituting a predetermined period, a maximum value of representative values of power consumption in the living area in each time zone constituting the unit period, The living activity determination device according to claim 3, wherein the maximum activity power value is calculated based on an average value and a standard deviation of the maximum value calculated every time.   The living behavior determining means has a representative value of power consumption in a time zone in which a representative value of power consumption in the time zone is smaller than the activity power value and before the time zone, and a representative value of power consumption in the time zone. Is greater than the activity power width and the representative value of power consumption in the previous time zone is greater than the activity power value, the activity in the living area tends to decrease during the time zone. The living behavior determining apparatus according to claim 1, wherein it is determined that a living behavior has occurred.   When there is a life event table in which a life event that is a type of life activity is associated with each time zone, and it is determined by the life behavior determination means that a life behavior has occurred, it is associated with the time zone according to the determination The living behavior determining apparatus according to claim 1, further comprising a living event determining unit that determines that a living event has occurred. A living behavior judging program for causing a computer mounted on a living behavior judging device to judge the occurrence of a living behavior of a consumer in a living area,
Based on the minimum value among the representative values of power consumption in the living area in each time zone constituting the unit period or a value related to the minimum value, at least one person or a predetermined number of people are active in the living area Active power value calculating means for calculating an active power value which is a criterion for determining whether or not
A standard for the difference between the representative value of power consumption in the living area in the time zone and the representative value of power consumption in the living area in the time zone prior to the time zone, corresponding to the occurrence of living behavior An active power width setting means for setting an active power width as a criterion for determining whether or not to perform;
Based on the representative value of power consumption in the living area during the time zone, the living activity occurs in the living area during the time zone using the calculated activity power value and the set activity power width as a threshold for determination. A living behavior determination program that causes a computer to function as a living behavior determination means for determining whether or not a user has performed. A method for determining the occurrence of a living behavior of a consumer in a living area,
Based on the minimum value among the representative values of power consumption in the living area in each time zone constituting the unit period or a value related to the minimum value, at least one person or a predetermined number of people are active in the living area The active power value is used as a criterion for determining whether or not the user is living, the representative value of the power consumption in the living area in the time zone, and the consumption in the living area in the time zone before the time zone. A first step of setting an active power width that is a criterion for a difference from a representative value of electric power and is a criterion for determining whether or not it corresponds to the occurrence of a living activity;
Based on the representative value of power consumption in the living area during the time zone, the living activity occurs in the living area during the time zone using the calculated activity power value and the set activity power width as a threshold for determination. And a second step of determining whether or not the living behavior is determined.

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